WO1997013597A2 - Procede de production d'une liaison intermetallique - Google Patents

Procede de production d'une liaison intermetallique Download PDF

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Publication number
WO1997013597A2
WO1997013597A2 PCT/DE1996/001808 DE9601808W WO9713597A2 WO 1997013597 A2 WO1997013597 A2 WO 1997013597A2 DE 9601808 W DE9601808 W DE 9601808W WO 9713597 A2 WO9713597 A2 WO 9713597A2
Authority
WO
WIPO (PCT)
Prior art keywords
reinforcement part
intermetallic
reinforcement
graphite
aluminum
Prior art date
Application number
PCT/DE1996/001808
Other languages
German (de)
English (en)
Other versions
WO1997013597A3 (fr
Inventor
Birgit Hudelmaier
Dieter MÜLLER-SCHWELLING
Detlef Schlosser
Original Assignee
Mahle Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mahle Gmbh filed Critical Mahle Gmbh
Priority to BR9610925A priority Critical patent/BR9610925A/pt
Priority to JP9514613A priority patent/JPH11514931A/ja
Priority to EP96945136A priority patent/EP0854763B1/fr
Priority to DE59602965T priority patent/DE59602965D1/de
Priority to US09/051,050 priority patent/US6112802A/en
Publication of WO1997013597A2 publication Critical patent/WO1997013597A2/fr
Publication of WO1997013597A3 publication Critical patent/WO1997013597A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

Definitions

  • the invention relates to a method for producing an intermetallic connection between a motor component made of an aluminum-based alloy and a reinforcement part made of austenitic cast iron, which are connected to one another by casting technology.
  • Corresponding methods are used in particular for introducing ring girders, occasionally also for introducing trough edge reinforcements in diesel engines.
  • the reinforcement part is connected to the piston material using the Alfin process, which has been known in the prior art since approx. 1950, by immersing the reinforcement part in an AlSi melt before the piston material is cast around it forms an intermetallic layer on the surface of the reinforcement part.
  • the invention is therefore concerned with the problem of increasing the strength of the intermetallic bond between the casting and the reinforcement part regardless of the use of a GGG or GGL material.
  • An essential area of application for the method according to the invention is in the production of pistons with reinforcement parts made of austenitic cast iron according to claim 2, the reinforcement parts according to claim 3 preferably being ring carriers.
  • the reinforcement parts must be annealed in an oven atmosphere with oxidizing and reducing components in order to largely avoid the formation of concentration differences due to nickel diffusion on the surface and the formation of iron oxides on the surface a surface formed in this way has a disruptive effect in the subsequent process steps.
  • Fig. 1 shows a cross section of an Alfin bond according to the invention with edge-graphitized reinforcement part
  • Fig. 2 shows a cross section of an Alfin bond without edge graphitization for comparison.
  • a reinforcement part made of austenitic cast material 1 with lamellar graphite formation is connected to a piston material AlSil2CuNiMg 2 by an Alfin layer 3.
  • the austenitic cast material is edge-graphitized in the area of the alfin bond to a depth of approx. 100-150 ⁇ m.
  • the de-graphitization is carried out by annealing the casting material in exogas at temperatures of at least o o
  • the content of CO and CO and the dew point must be set so that there is a good decarburizing effect in order to achieve short annealing times. In the present case, the glow time was 25 minutes.
  • exogas which has both reducing and oxidizing components, largely avoids differences in concentration and the formation of oxides on the surface.
  • the further process steps correspond to the Alfin process known in the prior art.
  • the compact graphite lamellae instead of the compact graphite lamellae, only loosened, non-coherent, pearl-cord-shaped oxides can be seen in the alfin layer 3, which do not have an effect on the strength of the alfin layer, or at least have a significantly lower effect than the graphite lamellae of an unannealed austenitic cast iron.
  • FIG. 2 A conventional alfin layer is shown in FIG. 2 only for comparison. There, the Alfin layer 4 is clearly penetrated by graphite lamellae, which weaken the Alfin bond, since they act as defects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

L'invention vise à améliorer la solidité de la liaison intermétallique entre un élément de moteur en alliage à base d'aluminium et une pièce d'armature en fonte austénitique. Pour ce faire, on recuit la pièce d'armature avant la mise en oeuvre d'un procédé connu impliquant l'utilisation d'alfine dans une atmosphère décarburante, pour produire une couche d'alfine sensiblement exempte de lamelles de graphite.
PCT/DE1996/001808 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique WO1997013597A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR9610925A BR9610925A (pt) 1995-10-11 1996-09-20 Processo para estabelecimento de uma união intermetálica
JP9514613A JPH11514931A (ja) 1995-10-11 1996-09-20 金属間化合物の製造方法
EP96945136A EP0854763B1 (fr) 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique
DE59602965T DE59602965D1 (de) 1995-10-11 1996-09-20 Verfahren zur herstellung einer intermetallischen verbindung
US09/051,050 US6112802A (en) 1995-10-11 1996-09-20 Process for producing an intermetallic join

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537847.4 1995-10-11
DE19537847A DE19537847A1 (de) 1995-10-11 1995-10-11 Bewehrungsteil, dessen Grundwerkstoff austenitisches Gußeisen ist

Publications (2)

Publication Number Publication Date
WO1997013597A2 true WO1997013597A2 (fr) 1997-04-17
WO1997013597A3 WO1997013597A3 (fr) 1997-06-05

Family

ID=7774578

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/001808 WO1997013597A2 (fr) 1995-10-11 1996-09-20 Procede de production d'une liaison intermetallique

Country Status (6)

Country Link
US (1) US6112802A (fr)
EP (1) EP0854763B1 (fr)
JP (1) JPH11514931A (fr)
BR (1) BR9610925A (fr)
DE (2) DE19537847A1 (fr)
WO (1) WO1997013597A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103596A1 (de) * 2001-01-26 2002-08-01 Bruehl Eisenwerk Verfahren zur Herstellung eines aus wenigstens zwei unterschiedlichen Metallwerkstoffen gebildeten Gußwerkstücks
DE10157478A1 (de) * 2001-11-23 2003-06-05 Fne Gmbh Metall-Verbundwerkstoff und Verfahren zur Herstellung eines Metall-Verbundwerkstoffs
DE10137436C2 (de) * 2001-07-31 2003-07-31 Ks Kolbenschmidt Gmbh Voralfinieren von Eingußteilen
DE10205798A1 (de) * 2002-02-13 2003-09-04 Federal Mogul Wiesbaden Gmbh Einsatzteil in ein Ober-und/oder Unterteil oder eine Versteifungsrippe eines Lagerstuhls
WO2003078676A1 (fr) * 2002-03-18 2003-09-25 Karl Merz Procede et dispositif d'alfination de pieces

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU773579B2 (en) * 2000-08-10 2004-05-27 Breville Pty Ltd Improvements in forming metallic laminates
DE10103896A1 (de) * 2001-01-30 2002-08-08 Mahle Gmbh Verfahren zur Vorbehandlung eines Ringträgers vor dem Alfinieren
DE10153306B4 (de) * 2001-10-31 2010-07-15 Daimler Ag Verfahren zum Eingießen eines Einlegeteils
DE102012011992A1 (de) * 2012-06-16 2013-12-19 Volkswagen Aktiengesellschaft Metallisches Gussbauteil und Verfahren zur Herstellung eines metallischen Gussbauteils
DE102012220645B3 (de) * 2012-11-13 2014-04-03 Federal-Mogul Nürnberg GmbH Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137659A (en) * 1983-04-08 1984-10-10 Usui Kokusai Sangyo Kk Joining cast iron member to another member of cast iron or other metal
CH645562A5 (en) * 1980-06-19 1984-10-15 Sulzer Ag Process for welding workpieces of nodular cast iron
WO1993011896A1 (fr) * 1991-12-09 1993-06-24 Reynolds Metals Company Fixation par procede metallurgique de pieces rapportees dans un produit coule
DE4221448A1 (de) * 1992-06-30 1994-01-13 Mahle Gmbh Bewehrungsmaterial für Kolben von Verbrennungsmotoren

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1048677B (de) * 1959-01-15 Mahle-Werk Gesellschaft mit be schrankter Haftung, Fellbach (Wurtt) Verfahren zum Aufbringen eines Aluminium- bzw Alummiumoxyduberzuges auf aus einer Eisenlegierung - z B Gußeisen - bestehende und mit Leichtmetall im Druckgießverfahren zu umgießende Em lagestucke
US2620530A (en) * 1945-02-07 1952-12-09 United Engine & Machine Co Manufacture of pistons
US2550879A (en) * 1949-11-10 1951-05-01 Fairchild Engine & Airplane Bimetallic piston
DE901104C (de) * 1949-11-10 1954-01-07 Fairchild Engine And Airplane Verbundgussstueck und Verfahren zu dessen Herstellung
US2775493A (en) * 1953-11-27 1956-12-25 Gillett & Eaton Inc Piston with head insert and process of making it
JPS5125214B2 (fr) * 1973-02-09 1976-07-29
IT1183114B (it) * 1985-01-11 1987-10-05 Ass Eng Italia Pistone d'alluminio o di lega d'alluminio per motori a combustione interna
SU1507532A1 (ru) * 1987-10-13 1989-09-15 Научно-исследовательский институт автотракторных материалов Способ изготовлени отливок поршн из алюминиевого сплава с чугунной вставкой
DE4010474A1 (de) * 1990-03-31 1991-10-02 Kolbenschmidt Ag Leichtmetallkolben
DE4019983A1 (de) * 1990-06-22 1992-01-02 Kolbenschmidt Ag Leichtmetallkolben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH645562A5 (en) * 1980-06-19 1984-10-15 Sulzer Ag Process for welding workpieces of nodular cast iron
GB2137659A (en) * 1983-04-08 1984-10-10 Usui Kokusai Sangyo Kk Joining cast iron member to another member of cast iron or other metal
WO1993011896A1 (fr) * 1991-12-09 1993-06-24 Reynolds Metals Company Fixation par procede metallurgique de pieces rapportees dans un produit coule
DE4221448A1 (de) * 1992-06-30 1994-01-13 Mahle Gmbh Bewehrungsmaterial für Kolben von Verbrennungsmotoren

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 7635 Derwent Publications Ltd., London, GB; Class M22, AN 76-66022X XP002029506 & JP 51 025 214 B (TOYO KOGYO CO) , 29.Juli 1976 *
See also references of EP0854763A2 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103596A1 (de) * 2001-01-26 2002-08-01 Bruehl Eisenwerk Verfahren zur Herstellung eines aus wenigstens zwei unterschiedlichen Metallwerkstoffen gebildeten Gußwerkstücks
DE10137436C2 (de) * 2001-07-31 2003-07-31 Ks Kolbenschmidt Gmbh Voralfinieren von Eingußteilen
DE10157478A1 (de) * 2001-11-23 2003-06-05 Fne Gmbh Metall-Verbundwerkstoff und Verfahren zur Herstellung eines Metall-Verbundwerkstoffs
DE10205798A1 (de) * 2002-02-13 2003-09-04 Federal Mogul Wiesbaden Gmbh Einsatzteil in ein Ober-und/oder Unterteil oder eine Versteifungsrippe eines Lagerstuhls
WO2003078676A1 (fr) * 2002-03-18 2003-09-25 Karl Merz Procede et dispositif d'alfination de pieces

Also Published As

Publication number Publication date
DE59602965D1 (de) 1999-10-07
EP0854763B1 (fr) 1999-09-01
US6112802A (en) 2000-09-05
BR9610925A (pt) 1999-06-29
JPH11514931A (ja) 1999-12-21
EP0854763A2 (fr) 1998-07-29
DE19537847A1 (de) 1997-04-17
WO1997013597A3 (fr) 1997-06-05

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